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You can’t resist the yawn. Chayanin Wongpracha/Shutterstock.com

What is it about yawning?

Everybody does it, but why? Scientists aren’t really sure if exhaustion, stress or some other social factor is at the root of yawning – and how it can be so contagious.
Trump has long talked about halting U.S. participation in the WTO. Reuters/Denis Balibouse

What is the WTO?

Trump has often talked about leaving the World Trade Organization. An economist explains what it is and what would happen if the president had his way.
As of June 2018, the U.S. is short on 182 drugs and medical supplies, including IV bags. Sherry Yates Young/shutterstock.com

Drug shortages pose a public health crisis in the US

The US is currently short on 182 drugs and medical supplies. The problem isn’t new, but it’s frustrating health care workers.
Despite alarming news, retirees can still rely on their retirement nest eggs. Dan Kosmayer/Shutterstock.com

Social Security’s future is safe

Social Security will have to dip into its trust fund to pay benefits this year for the first time since 1982. Should we be worried?
One one thousand, two one thousand…. Eric Ward/Unsplash

How far away was that lightning?

When you see a bolt of lightning, do you immediately start counting to see how far off a storm is? An atmospheric scientist parses the practice.
A cellar worker steams American oak wine barrels before their use at Silver Oak Cellars in Oakville, Calif. AP Photo/Eric Risberg

A brief history of American winemaking

Wine came to the US in the 16th century but didn’t make it to California – the leader in American winemaking – until the 19th century.

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